chore(deps): upgrade Flutter SDK from 3.10.1 to 3.27.1

- Update Flutter SDK version to 3.27.1
- Update minimum dart SDK version
- Update dependencies to compatible versions
- Fix deprecated method calls
- Run migration for breaking changes

lib/feature/main/main_bloc.dart

@@ -2,8 +2,6 @@ import 'dart:async';
 
 import 'package:flutter/material.dart';
 import 'package:sfm_app/product/base/bloc/base_bloc.dart';
-import 'package:sfm_app/product/constant/enums/app_theme_enums.dart';
-
 import '../bell/bell_model.dart';
 
 class MainBloc extends BlocBase {